Intel Raptor Lake Mitigation Impact Performance Comparison

Written by Michael Larabel in Software on 7 December 2022 at 11:20 AM EST. Page 4 of 4. 2 Comments.
Intel Raptor Lake Mitigation Cost
Intel Raptor Lake Mitigation Cost
Intel Raptor Lake Mitigation Cost

In some Apache HBase configurations there were minor advantages to running with mitigations=off on Raptor Lake, but is it worth the security risk?

In the end out of 198 tests run with the mitigation on/off comparison for the Core i9 13900K, there were only a handful of tests with a measurable difference either way, and some of them may as well be noise.

Intel Raptor Lake Mitigation Cost

Just in a few tests like Apache HBase and Apache Spark did there tend to be any measurable benefit from running Intel Raptor Lake in Linux's mitigations=off mode. Or the synthetic context switching tests... But for the most part, the software-involved mitigations still relevant for Raptor Lake can be left on without any significant difference to the performance.

Intel Raptor Lake Mitigation Cost

Taking the geometric mean of all 198 tests showed the performance overall to be unchanged. Those wanting to go through all the individual benchmarks in full can do so via this result page. Overall it's finally boring -- and that's a good thing.

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Michael Larabel

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.